STOP auto filling slots
For the love of all that's holy, cut it out!
There is NEVER a moment where I am happy you did it. And it OFTEN happens where you'll fill something incorrectly. Sometimes, it's just annoying, like when I am running JMMW in the raid 30 times to get the right RNG and every single time you add my unused Vane to the squad and I have to remove it and hit Okay, over and over.
And there then are moments like today, where I'm running one cap ship (Executor) and warned about a prereq; so I hop over to a different fleet battle, fill my ships, and start... only to realize you helped me so nicely by prefilling Exec in what was intended to be my Levi battle. Bam. Two ruined fleets. All because of a feature that I cannot imagine one single good use for.